Dyfyniad APA

Abbott, P. L. (2004). Natural disasters (Forth edition.). McGraw-Hill Higer Education.

Dyfyniad Arddull Chicago

Abbott, Patrick L. Natural Disasters. Forth edition. Boston: McGraw-Hill Higer Education, 2004.

Dyfyniad MLA

Abbott, Patrick L. Natural Disasters. Forth edition. McGraw-Hill Higer Education, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.